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This document provides examples of AT commands for sending, receiving, reading and deleting SMS messages using a SIM300 module. It demonstrates commands for setting the SMS mode to text, sending an SMS to oneself, receiving an unsolicited notification of the incoming message, reading the new message, sending another message, listing all messages, and deleting one of the messages.

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48 views3 pages

C C C CC C CCC !" #$%&' C CC #$C&+#,-'.' ,',+ / #$c01 " CC

This document provides examples of AT commands for sending, receiving, reading and deleting SMS messages using a SIM300 module. It demonstrates commands for setting the SMS mode to text, sending an SMS to oneself, receiving an unsolicited notification of the incoming message, reading the new message, sending another message, listing all messages, and deleting one of the messages.

Uploaded by

reddyece402
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Some are given here ,can be tried on pc using hyperterminal.

SIM300 AT Command Set

SMS commands

Demonstration Syntax Expect Result

Set SMS system into text mode, as

opposed to PDU mode.

AT+CMGF=1 OK

Send an SMS to myself.

AT+CMGS=”+861391

818xxxx”

>This is a test

+CMGS:34

OK

Unsolicited notification of the SMS

arriving

+CMTI:”SM”,1

Read SMS message that has just arrived.

Note: the number should be the same as

that given in the +CMTI notification.

AT+CMGR=1 +CMGR: “REC UNREAD”,

“+8613918186089”, ,”02

/01/30,20:40:31+00”

This is a test

OK

Reading the message again changes the

status to “READ” from ”UNREAD”

AT+CMGR=1 +CMGR: “REC READ”,


“+8613918186089”, ,

“02/01/30,20:40:31+00”

This is a test

OK

Send another SMS to myself. AT+CMGS=”+861391

818xxxx”

>Test again

+CMGS:35

OK

Unsolicited notification of the SMS

arriving

+CMTI:”SM”,2

Listing all SMS messages.

Note:”ALL” must be in uppercase.

AT+CMGL=”ALL” +CMGL: 1,”REC

READ”,”+8613918186089”,

, “02/01/30,20:40:31+00”

This is a test

+CMGL: 2,”REC

UNREAD”,” ”,”+861391818

6089”,

, “02/01/30,20:45:12+00”

Test again

OK

Delete an SMS message. AT+CMGD=1 OK

List all SMS messages to show message

has been deleted.


AT+CMGL=”ALL” +CMGL: 2,”REC READ”,

“+8613918186

089”,”02/01/30,20:45:12+00

Test again

OK

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